Commuters report sitting in traffic for hours

Route 128 in Dedham was closed southbound Friday afternoon after a crash involving five vehicles, Massachusetts State Police said, causing nightmare traffic delays just as the evening commute was beginning.

"A tractor-trailer with an approximate 50-foot trailer jackknifed across the roadway, colliding with other vehicles," State Police said in a statement. "The truck collided with a ten-wheeled, dump truck pulling a trailer. In addition, three other passenger cars were involved in the crash."

One commuter said he had been sitting in traffic for hours.

No injuries were reported.

One lane did open for traffic just after 4 p.m., but traffic was backed up for about 20 miles, extending far past the Lexington area.

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